megan mcgrath joins us and tells us what is happening out there. good morning, megan. >> reporter: the union station metro station has re-opened but it was closed for about an hour and 15 minutes this morning, so affecting the people at the tail end of rush hour. at 8:45 this morning they experienced an electrical problem, and it was a spark that was on a component associated with the third rail, that's the electrical rail, inside the union station metro station. there were sparks that put off smoke and the smoke gathered in the tunnel prompting them to close the metro station for about an hour and 15 minutes. they had to single track trains between stations, and whenever you single track that causes big backups, and there were significant delays for a time this was all happening. and then on wednesday, the orange line had problems during the morning and evening rush hour, and a switch lost power, and that caused major issues and delays for people, and on tuesday night, there was chaos after a person was hit by a train at the claire ton metro stop,